XQCD 2019 (The 17th International Conference on QCD in Extreme Conditions)

Studying the QCD phase diagram in RHIC-BES at STAR

25 Jun 2019, 09:00

45m

134 (Bunkyo School Building, Tokyo Campus, University of Tsukuba)

Invited talk Session5

Speaker

Dr Toshihiro Nonaka (Central China Normal University)

Description

Exploring the QCD phase structure is one of the ultimate goals of high-energy heavy-ion colliding experiments. At BNL-RHIC, the Beam Energy Scan (BES-I) program was carried out from 2010 to 2014, and many data sets have been collected by the STAR experiment in various collision energies from $\sqrt{s_{NN}}=$ 200 GeV down to 7.7 GeV in Au+Au collisions. In order to reduce the uncertainties in the interested energy region (7.7 $<\sqrt{s_{NN}}<$ 19.6 GeV), the BES-II program is scheduled for 2019-2021. In this talk, we present the BES-I results on hadron spectra, directed flow and higher-order cumulants of conserved charges which covers the physics issues of the freeze-out, first-order phase transition and the searching for the QCD critical point, respectively. The current status of BES-II and the future prospects for the fixed-target program will be also discussed.

Presentation materials

Slides

11_ToshihiroNonaka.pdf